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- # -*- coding: utf-8 -*-
- # Copyright 2016 OpenMarket Ltd
- #
- # Licensed under the Apache License, Version 2.0 (the "License");
- # you may not use this file except in compliance with the License.
- # You may obtain a copy of the License at
- #
- # http://www.apache.org/licenses/LICENSE-2.0
- #
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
- import logging
- from canonicaljson import json
- from twisted.internet import defer
- from synapse.api.errors import SynapseError
- from synapse.logging.opentracing import (
- get_active_span_text_map,
- log_kv,
- set_tag,
- start_active_span,
- )
- from synapse.types import UserID, get_domain_from_id
- from synapse.util.stringutils import random_string
- logger = logging.getLogger(__name__)
- class DeviceMessageHandler(object):
- def __init__(self, hs):
- """
- Args:
- hs (synapse.server.HomeServer): server
- """
- self.store = hs.get_datastore()
- self.notifier = hs.get_notifier()
- self.is_mine = hs.is_mine
- self.federation = hs.get_federation_sender()
- hs.get_federation_registry().register_edu_handler(
- "m.direct_to_device", self.on_direct_to_device_edu
- )
- @defer.inlineCallbacks
- def on_direct_to_device_edu(self, origin, content):
- local_messages = {}
- sender_user_id = content["sender"]
- if origin != get_domain_from_id(sender_user_id):
- logger.warning(
- "Dropping device message from %r with spoofed sender %r",
- origin,
- sender_user_id,
- )
- message_type = content["type"]
- message_id = content["message_id"]
- for user_id, by_device in content["messages"].items():
- # we use UserID.from_string to catch invalid user ids
- if not self.is_mine(UserID.from_string(user_id)):
- logger.warning("Request for keys for non-local user %s", user_id)
- raise SynapseError(400, "Not a user here")
- messages_by_device = {
- device_id: {
- "content": message_content,
- "type": message_type,
- "sender": sender_user_id,
- }
- for device_id, message_content in by_device.items()
- }
- if messages_by_device:
- local_messages[user_id] = messages_by_device
- stream_id = yield self.store.add_messages_from_remote_to_device_inbox(
- origin, message_id, local_messages
- )
- self.notifier.on_new_event(
- "to_device_key", stream_id, users=local_messages.keys()
- )
- @defer.inlineCallbacks
- def send_device_message(self, sender_user_id, message_type, messages):
- set_tag("number_of_messages", len(messages))
- set_tag("sender", sender_user_id)
- local_messages = {}
- remote_messages = {}
- for user_id, by_device in messages.items():
- # we use UserID.from_string to catch invalid user ids
- if self.is_mine(UserID.from_string(user_id)):
- messages_by_device = {
- device_id: {
- "content": message_content,
- "type": message_type,
- "sender": sender_user_id,
- }
- for device_id, message_content in by_device.items()
- }
- if messages_by_device:
- local_messages[user_id] = messages_by_device
- else:
- destination = get_domain_from_id(user_id)
- remote_messages.setdefault(destination, {})[user_id] = by_device
- message_id = random_string(16)
- context = get_active_span_text_map()
- remote_edu_contents = {}
- for destination, messages in remote_messages.items():
- with start_active_span("to_device_for_user"):
- set_tag("destination", destination)
- remote_edu_contents[destination] = {
- "messages": messages,
- "sender": sender_user_id,
- "type": message_type,
- "message_id": message_id,
- "org.matrix.opentracing_context": json.dumps(context),
- }
- log_kv({"local_messages": local_messages})
- stream_id = yield self.store.add_messages_to_device_inbox(
- local_messages, remote_edu_contents
- )
- self.notifier.on_new_event(
- "to_device_key", stream_id, users=local_messages.keys()
- )
- log_kv({"remote_messages": remote_messages})
- for destination in remote_messages.keys():
- # Enqueue a new federation transaction to send the new
- # device messages to each remote destination.
- self.federation.send_device_messages(destination)
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